GB2551286A - Dimming method for LED converter - Google Patents

Dimming method for LED converter

Info

Publication number
GB2551286A
GB2551286A GB1712379.5A GB201712379A GB2551286A GB 2551286 A GB2551286 A GB 2551286A GB 201712379 A GB201712379 A GB 201712379A GB 2551286 A GB2551286 A GB 2551286A
Authority
GB
United Kingdom
Prior art keywords
signal
led converter
led
terminal
control circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
GB1712379.5A
Other versions
GB201712379D0 (en
Inventor
Mao Egbert
Long Yongchang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tridonic GmbH and Co KG
Original Assignee
Tridonic GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tridonic GmbH and Co KG filed Critical Tridonic GmbH and Co KG
Publication of GB201712379D0 publication Critical patent/GB201712379D0/en
Publication of GB2551286A publication Critical patent/GB2551286A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/375—Switched mode power supply [SMPS] using buck topology
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/38—Switched mode power supply [SMPS] using boost topology
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/385—Switched mode power supply [SMPS] using flyback topology
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

A dimmable LED converter (1) includes at least one terminal for supplying power to at least one LED (22) and a control circuit (44) for controlling a switch of the LED converter (1) in order to modulate the power provided at the at least one terminal. An interface (34) is adapted to receive an analogue dimming signal (11), a dimming signal conversion circuit (38) converts a level of the received analog dimming signal (11) into a parameter of a pulsed signal (39) and an isolated signal transmission means (40) transmits the pulsed signal (39) across an isolation barrier (8) and supplies the transmitted pulsed signal (41) directly or indirectly to the control circuit (44).
GB1712379.5A 2015-03-19 2015-03-19 Dimming method for LED converter Pending GB2551286A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2015/074564 WO2016145646A1 (en) 2015-03-19 2015-03-19 Dimming method for led converter

Publications (2)

Publication Number Publication Date
GB201712379D0 GB201712379D0 (en) 2017-09-13
GB2551286A true GB2551286A (en) 2017-12-13

Family

ID=56918213

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1712379.5A Pending GB2551286A (en) 2015-03-19 2015-03-19 Dimming method for LED converter

Country Status (2)

Country Link
GB (1) GB2551286A (en)
WO (1) WO2016145646A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113365391B (en) * 2021-04-28 2022-08-05 深圳市崧盛电子股份有限公司 Intelligent dimming turn-off control circuit and driving power supply
US20230231482A1 (en) * 2022-01-17 2023-07-20 Mediatek Singapore Pte. Ltd. Voltage regulator with dynamic voltage and frequency tracking

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2600511A1 (en) * 2010-07-30 2013-06-05 Mitsumi Electric Co., Ltd. Isolated power supply device and illumination device
CN103857148A (en) * 2012-11-30 2014-06-11 硅工厂股份有限公司 Power supply apparatus for LED lighting and LED lighting apparatus using the same
US20150015156A1 (en) * 2013-07-10 2015-01-15 Osram Gmbh Signal transmission method and related device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2600511A1 (en) * 2010-07-30 2013-06-05 Mitsumi Electric Co., Ltd. Isolated power supply device and illumination device
CN103857148A (en) * 2012-11-30 2014-06-11 硅工厂股份有限公司 Power supply apparatus for LED lighting and LED lighting apparatus using the same
US20150015156A1 (en) * 2013-07-10 2015-01-15 Osram Gmbh Signal transmission method and related device

Also Published As

Publication number Publication date
GB201712379D0 (en) 2017-09-13
WO2016145646A1 (en) 2016-09-22

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